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Rust Map Seeds & Procedural Generation Guide (2025)

Rust Guide • Updated Feb 8, 2026

Rust Map Seeds: Finding the Perfect World

A Rust server is only as good as its map. The layout determines player flow, monument access, and where the massive clan bases will eventually tower. Rust uses procedural generation creating a unique world from a numerical "seed".

How Map Generation Works

Every Rust map is defined by two main parameters in your server.cfg or startup script:

server.seed 12345 server.worldsize 3000

1. server.seed (The DNA)

This number (integer) controls the random generation. Change the seed, and mountains, rivers, and monuments move.

2. server.worldsize (The Scale)

Defines the map size in meters.

  • 3000: Small. Good for 50-100 players. Fast-paced PvP.
  • 3500-4000: Standard. Balanced for 150-250 players. Most official servers use ~4000.
  • 4500+: Massive. Good for 300+ players, cars, and helis.

How to Find the Best Seeds

Don't guess random numbers! Use tools to preview maps before you wipe.

Using RustMaps.com

The best way to find a seed is via RustMaps.com. You can filter by:

  • Monument Count: Ensure launch site, military tunnels, and oil rigs are present.
  • Biome Distribution: Find maps with large snow biomes (for nodes) or deserts.
  • Topology: Look for flat areas for huge bases or interesting cliffs.

Top 3 Map Types to Look For (2025 Meta)

The "Launch Site Loop" Seed

Ideal for: PvP groups.
Look for: Launch Site near Outpost or Bandit Camp. This creates a high-traffic zone for constant action.

The "Island" Seed

Ideal for: Clan control.
Look for: Maps with distinct islands connected by bridges or ice sheets. Clans can lock down entire islands.

The "Tier 0 Start" Seed

Ideal for: Solos/Duos.
Look for: A spawn beach far away from Tier 3 monuments, giving fresh spawns a chance to build before getting raided.

Generating Custom Maps

Want something truly unique? You aren't limited to procedural maps.

Using RustEdit (Custom Maps)

Advanced server owners use RustEdit to hand-craft terrain.

  1. Download a custom `.map` file from sites like Codefling or Lone.Design.
  2. Place it in your server's `maps/` folder.
  3. Add `+server.levelurl "https://yoursite.com/map.map"` to startup parameters.

Warning: Custom maps often require the RustEdit Oxide extension to run properly (for custom puzzles/events).

Applying a New Seed

To change your map for a wipe:

  1. Stop your server.
  2. Edit `server.cfg` or startup line.
  3. Change `server.seed` to your new chosen number.
  4. (Optional) Delete the expanding `.sav` and `.map` files in `server/rust-server/` to force a clean generation.
  5. Start the server.

Ready to launch your world? Get a High-Performance Rust Server capable of generating massive 5000 size maps in seconds.

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